On Sun, 2006-10-22 at 14:03 -0500, Marc Schwartz wrote:
> On Sun, 2006-10-22 at 14:37 -0400, Wensui Liu wrote:
> > Thank you so much, Marc and Peter,
> >
> > Your method works great if I want to convert N dummies into N-level
> > factor. But what if I want to convert N dummies into (N+1)-level
> >
Thank you so much, Marc and Peter,
Your method works great if I want to convert N dummies into N-level
factor. But what if I want to convert N dummies into (N+1)-level
factor? I tried both ways but none works.
Again, thank you so much!
On 10/22/06, Marc Schwartz <[EMAIL PROTECTED]> wrote:
> On
Great!
It seems everyone is having fun with R in the weekend afternoon.
Thank you so much, Marc and Peter.
On 10/22/06, Marc Schwartz <[EMAIL PROTECTED]> wrote:
> On Sun, 2006-10-22 at 14:03 -0500, Marc Schwartz wrote:
> > On Sun, 2006-10-22 at 14:37 -0400, Wensui Liu wrote:
> > > Thank you so
"Wensui Liu" <[EMAIL PROTECTED]> writes:
> Thank you so much, Marc and Peter,
>
> Your method works great if I want to convert N dummies into N-level
> factor. But what if I want to convert N dummies into (N+1)-level
> factor? I tried both ways but none works.
Mine should work, except for the
On Sun, 2006-10-22 at 14:37 -0400, Wensui Liu wrote:
> Thank you so much, Marc and Peter,
>
> Your method works great if I want to convert N dummies into N-level
> factor. But what if I want to convert N dummies into (N+1)-level
> factor? I tried both ways but none works.
>
> Again, thank you so
On Sun, 2006-10-22 at 09:35 +0200, Peter Dalgaard wrote:
> Marc Schwartz <[EMAIL PROTECTED]> writes:
>
> > On Sat, 2006-10-21 at 21:04 -0400, Wensui Liu wrote:
> > > Dear Listers,
> > >
> > > I am wondering how to convert multiple dummy variables to 1 factor
> > > variable.
> > >
> > > Thanks.
Marc Schwartz <[EMAIL PROTECTED]> writes:
> On Sat, 2006-10-21 at 21:04 -0400, Wensui Liu wrote:
> > Dear Listers,
> >
> > I am wondering how to convert multiple dummy variables to 1 factor variable.
> >
> > Thanks.
> >
> > wensui
>
> I was thinking of a function that is essentially the revers
On Sat, 2006-10-21 at 21:04 -0400, Wensui Liu wrote:
> Dear Listers,
>
> I am wondering how to convert multiple dummy variables to 1 factor variable.
>
> Thanks.
>
> wensui
I was thinking of a function that is essentially the reverse of
model.matrix() which is used by R modeling functions. I di
Dear Listers,
I am wondering how to convert multiple dummy variables to 1 factor variable.
Thanks.
wensui
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